This is the 14952nd most frequent German word.
saures
"Saures" in German means "something sour" or "acidic."
Here, 'saures' is an adjective modifying 'Bonbon', indicating the type of candy desired.
Ich möchte ein saures Bonbon, bitte.
I would like a sour candy, please.
In this form, 'saures' metaphorically expresses a negative or unpleasant experience, extending its literal meaning.
Die Situation gestern war wirklich saures für uns.
The situation yesterday was really bitter for us.
In this sentence, 'saures' is used as an adjective describing the taste of the apple juice, implying it's sour.